Crystals Go to War
Narration by one of the research scientists of the U.S. Army Signal Corps. Produced by André de LaVarre.
CU sticker: "Damage to this Vital War Material is SABOTAGE / Please Handle Carefully."
CU VS quartz crystals, different varieties.
Women workers at Reeves Sound Laboratories cutting and testing radio crystals, making wafers.
Some good CUs of women workers
Subject: My mouth is still open..
I think folks should grab a look at this 'just because'... Just because of the effort it took for something we mostly took for granted not too long after this was filmed.
I remember up until the 1970's 'swapping crystals' on two way radios. I can only imagine the method they mention in the end about the 'new process' had to have been well in play at that time as a new crystal was maybe 10 dollars today's money.. Whole new channel.. Heck, they used to sell CB's you had to buy the crystals you wanted for the channel you wanted.. This film gives a whole new appreciation for crystal making in the earlier days of radio. I found it fascinating myself.
Subject: Ingenuity on parade
Not for everyone, but if you like production technology...
Subject: New understanding for previously seen textbook content
I once moved a crystal for ham radio a little in frequency using Babo and water on a piece of glass. Seeing the precision with which it should have been done was fascinating.
I thought this movie was well worth the time spent watching; always nice to find some history of technology showing up on Prelinger Archives.
Subject: My Tweed Coat matches the Acid Bath Basin Colors
Not really worth 40... 40! Minutes of your time, but still interesting if you wanna have a go.
Subject: Wartime radio
frequency crystals for use in military aircraft radios. What I always find remarkable in these films is the complexity of the processes and tools
and equipment required. You realize what effort is needed to conceive the methods, design and test the tools and equipment and test the product to assure uniform quality. Films such as these are a tribute to man's ingenuity. Highly recommended!
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